package com.himiotech.core.project.web.support;

import cn.hutool.core.util.StrUtil;
import com.himiotech.core.framework.config.HimioConfig;
import com.himiotech.core.framework.config.server.ServerInfo;
import com.himiotech.core.framework.helper.constant.Constants;
import com.himiotech.core.framework.helper.utils.file.FileUploadUtils;
import com.himiotech.core.framework.helper.utils.file.FileUtils;
import com.himiotech.core.project.web.base.HimioBaseController;
import com.himiotech.core.project.web.base.model.HimioResult;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.MediaType;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.multipart.MultipartFile;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 * 通用请求处理
 *
 * @author ruoyi
 * @author wuwenbin
 */
@Slf4j
@Controller
public class CommonController extends HimioBaseController {

    @Autowired
    private ServerInfo serverInfo;

    /**
     * 通用下载请求
     *
     * @param fileName 文件名称
     * @param delete   是否删除
     */
    @GetMapping("/common/download")
    public void fileDownload(String fileName, Boolean delete, HttpServletResponse response, HttpServletRequest request) {
        try {
            if (!FileUtils.checkAllowDownload(fileName)) {
                throw new Exception(StrUtil.format("文件名称({})非法，不允许下载。 ", fileName));
            }
            String realFileName = System.currentTimeMillis() + fileName.substring(fileName.indexOf("_") + 1);
            String filePath = HimioConfig.getDownloadPath() + fileName;

            response.setContentType(MediaType.APPLICATION_OCTET_STREAM_VALUE);
            FileUtils.setAttachmentResponseHeader(response, realFileName);
            FileUtils.writeBytes(filePath, response.getOutputStream());
            if (delete) {
                FileUtils.deleteFile(filePath);
            }
        } catch (Exception e) {
            log.error("下载文件失败", e);
        }
    }

    /**
     * 通用上传请求
     */
    @PostMapping("/common/upload")
    @ResponseBody
    public HimioResult uploadFile(MultipartFile file) throws Exception {
        try {
            // 上传文件路径
            String filePath = HimioConfig.getUploadPath();
            // 上传并返回新文件名称
            String fileName = FileUploadUtils.upload(filePath, file);
            String url = serverInfo.getUrl() + fileName;
            HimioResult ajax = HimioResult.okMsg("上传成功");
            ajax.put("fileName", fileName);
            ajax.put("url", url);
            //tinymce
            ajax.put("location", url);
            return ajax;
        } catch (Exception e) {
            return writeJsonErr(e.getMessage());
        }
    }

    /**
     * 通用上传请求 base64
     */
    @PostMapping("/common/upload/base64")
    @ResponseBody
    public HimioResult uploadFile(String base64Str) throws Exception {
        if (StringUtils.isNotEmpty(base64Str) && base64Str.startsWith("data:")) {
            MultipartFile multipartFile = FileUtils.base64ToMultipartFile(base64Str);
            return uploadFile(multipartFile);
        }
        return writeJsonErr("上传内容非法！");
    }

    /**
     * 本地资源通用下载
     */
    @GetMapping("/common/download/resource")
    public void resourceDownload(String resource, HttpServletResponse response) {
        try {
            if (!FileUtils.checkAllowDownload(resource)) {
                throw new Exception(StrUtil.format("资源文件({})非法，不允许下载。 ", resource));
            }
            // 本地资源路径
            String localPath = HimioConfig.getProfileStatic();
            // 数据库资源地址
            String downloadPath = localPath + StringUtils.substringAfter(resource, Constants.UPLOAD_FILE_PREFIX);
            // 下载名称
            String downloadName = StringUtils.substringAfterLast(downloadPath, "/");
            response.setContentType(MediaType.APPLICATION_OCTET_STREAM_VALUE);
            FileUtils.setAttachmentResponseHeader(response, downloadName);
            FileUtils.writeBytes(downloadPath, response.getOutputStream());
        } catch (Exception e) {
            log.error("下载文件失败", e);
        }
    }
}
